What is the theta of a future?

Could you please explain to me what the theta of a future actually represents? I've heard this term being mentioned in the context of derivatives trading and financial modeling, but I'm still unclear about its significance. Would it be possible to break it down into simpler terms and maybe provide an example to illustrate the concept? Additionally, how does theta factor into pricing decisions and risk management strategies when dealing with futures contracts? Thank you for your assistance in clarifying this matter.